Harry F Mariani Family Foundation
Invitation OnlyLocust Valley, New York · EIN 84-3901549 · Private foundation
Grants paid (2025)$272K
Organizations funded14
Typical grant$10,000
Total assets$6.8M
Half of its grants to organizations were between $3,000 and $27,000.
From the return
How to apply
On its return for tax year 2025 the foundation checked the box saying it only makes contributions to preselected charitable organizations and does not accept unsolicited requests for funds.
What it funds
Share of grant lines on the latest return, classified from the purpose each grant states.
Where it gives
78% of grants went outside New York.
Grants paid in tax year 2025
| Recipient | Location | Purpose | Amount |
|---|---|---|---|
| Tisch Multiple Sclerosis Research Center New York Inc | New York, NY | General support | $68,000 |
| Northwell Health Foundation | Huntington, NY | General support | $56,000 |
| The Beaufort County Open Land Trust Inc | Beaufort, SC | General support | $50,000 |
| Pingree School | South Hamilton, MA | General support | $27,000 |
| University of Notre Dame | Notre Dame, IN | General support | $25,000 |
| The Don Monti Memorial Research Foundation | Cold Spring Harbor, NY | General support | $12,000 |
| Coastal Conservation Association South Carolina | Columbia, SC | General support | $10,000 |
| Tulane University | Dallas, TX | General support | $10,000 |
| St Joseph's Children's Hospital Tampa | Tampa, FL | General support | $4,000 |
| Community Dispute Settlement Center | Cambridge, MA | General support | $3,000 |
| Minuteman Senior Services | Bedford, MA | General support | $3,000 |
| North Charleston Animal Society | North Charleston, SC | General support | $1,500 |
| Lowcountry Food Bank | Charleston, SC | General support | $1,500 |
| One80 Place | Charleston, SC | General support | $1,000 |
Giving by year
| Tax year | Grants paid | Grant lines |
|---|---|---|
| 2025 | $272,000 | 14 |
| 2024 | $200,000 | 14 |
| 2023 | $240,000 | 24 |
Sources
- IRS Form 990-PF, tax year 2025, filed Apr 14, 2026 - IRS e-file batch, object ID 202631049349100633
- IRS Tax Exempt Organization Search for EIN 84-3901549
- Profile updated Nov 5, 2026
Facts on this page come from the foundation's own IRS Form 990-PF filings as published by the IRS. Grantvello does not know whether a foundation is accepting proposals right now: a past grant is not an open opportunity. Always confirm current guidelines with the funder before applying.